Java Code Examples for com.facebook.presto.spi.type.Type#getJavaType()

The following examples show how to use com.facebook.presto.spi.type.Type#getJavaType() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: HbaseRowSerializerUtil.java    From presto-connectors with Apache License 2.0 6 votes vote down vote up 
/**
 * @param type Presto type
 * @param block Block to decode
 * @param position Position in the block to get
 * @return Java object from the Block
 */
private static Object readObject(Type type, Block block, int position)
{
    if (Types.isArrayType(type)) {
        Type elementType = Types.getElementType(type);
        return getArrayFromBlock(elementType, block.getObject(position, Block.class));
    }
    else if (Types.isMapType(type)) {
        return getMapFromBlock(type, block.getObject(position, Block.class));
    }
    else {
        if (type.getJavaType() == Slice.class) {
            Slice slice = (Slice) TypeUtils.readNativeValue(type, block, position);
            return type.equals(VarcharType.VARCHAR) ? slice.toStringUtf8() : slice.getBytes();
        }

        return TypeUtils.readNativeValue(type, block, position);
    }
}
Example 2
Source File: ElasticsearchPageSource.java    From presto-connectors with Apache License 2.0 4 votes vote down vote up 
private void appendTo(Type type, Object value, BlockBuilder output)
{
    if (value == null) {
        output.appendNull();
        return;
    }
    Class<?> javaType = type.getJavaType();
    try {
        if (javaType == boolean.class) {
            type.writeBoolean(output, (Boolean) value);
        }
        else if (javaType == long.class) {
            if (type.equals(BIGINT)) {
                type.writeLong(output, ((Number) value).longValue());
            }
            else if (type.equals(INTEGER)) {
                type.writeLong(output, ((Number) value).intValue());
            }
            else if (type.equals(DATE)) {
                long millis = (Long) value;
                type.writeLong(output, TimeUnit.MILLISECONDS.toDays(millis));
            }
            else if (type.equals(TIME)) {
                type.writeLong(output, (Long) value);
            }
            else if (type.equals(TIMESTAMP)) {
                type.writeLong(output, (Long) value);
            }
            else {
                throw new PrestoException(GENERIC_INTERNAL_ERROR, "Unhandled type for " + javaType.getSimpleName() + ":" + type.getTypeSignature());
            }
        }
        else if (javaType == double.class) {
            type.writeDouble(output, ((Number) value).doubleValue());
        }
        else if (javaType == Slice.class) {
            writeSlice(output, type, value);
        }
        else if (javaType == Block.class) {
            writeBlock(output, type, value);
        }
        else {
            throw new PrestoException(GENERIC_INTERNAL_ERROR, "Unhandled type for " + javaType.getSimpleName() + ":" + type.getTypeSignature());
        }
    }
    catch (ClassCastException ignore) {
        // returns null instead of raising exception
        output.appendNull();
    }
}